Since Valve’s Steam Dev Days event is closed to the press (it’s billed as an “off the record” place for developers to hang out and listen to conference chats,) there isn’t a whole lot of detail emerging from it at present.

Eagle-eyed NeoGafians have used one of their many thousand pairs of eyes to notice that Valve has released a few spec details for the 300 prototype Steam Machines that will eventually be finding their way to beta testers.